A professional 5-piece dry diamond core drill set designed for drilling clean holes in brick and blockwork, ideal for plumbers, electricians and construction trades.
• Turbo segment design: Faster drilling and cleaner cuts
• Helix barrel: Efficient dust clearance and core removal
• Core sizes included: 38mm 52mm 65mm 117mm 127mm
• Drilling depth: 150mm core length
• Connection type: 1/2" BSP female thread
• Compliance standard: OSA certified and BS EN 13236
OTEC Premium 5-Piece Dry Diamond Core Drill Set (38/52/65/117/127mm) with Accessories & Case
A professional 5-piece dry diamond core drill set designed for drilling clean holes in brick and blockwork, ideal for plumbers, electricians and construction trades.
• Turbo segment design: Faster drilling and cleaner cuts
• Helix barrel: Efficient dust clearance and core removal
• Core sizes included: 38mm 52mm 65mm 117mm 127mm
• Drilling depth: 150mm core length
• Connection type: 1/2" BSP female thread
• Compliance standard: OSA certified and BS EN 13236
- Buy 5 for £154.80 £129.00 each and save 7%
- Buy 10 for £142.80 £119.00 each and save 14%
| BULK DISCOUNT | 5 | 10 |
|---|---|---|
| Price | £129.00 £154.80 | £119.00 £142.80 |
Order 1x to earn 139 FASTPoints
Order to earn 139 FASTPoints
Log in to access trade discountsOTEC Premium 5-Piece Dry Diamond Core Drill Set (38/52/65/117/127mm) with Accessories & Case
This premium 5-piece dry diamond core drill set is built for trade professionals who require flexibility across a wider range of drilling applications. Covering five key sizes, it allows accurate drilling for pipework, ducting, and service installations without needing additional cores.
Each core features turbo segments and a helix barrel design to improve cutting speed, reduce clogging, and maintain consistent performance across repeated use.
Why Choose the OTEC 5-piece dry diamond core drill set
• Five core sizes included: Covers a broader range of plumbing, electrical, and ventilation applications
• Turbo diamond segments: Increases cutting speed while maintaining clean hole edges
• Helix barrel design: Improves dust removal and reduces downtime caused by clogging
• Complete accessory kit: Includes adaptors, pilot drill, and guide for immediate use
• Dry drilling capability: Suitable for indoor and controlled environments without water
• 1/2" BSP compatibility: Works with standard UK drilling equipment and accessories
What’s in the Box?
• 1 x 38mm dry diamond core drill
• 1 x 52mm dry diamond core drill
• 1 x 65mm dry diamond core drill
• 1 x 117mm dry diamond core drill
• 1 x 127mm dry diamond core drill
• 1 x 250mm 1/2" BSP solid extension
• 1 x SDS Plus adaptor
• 1 x HEX adaptor
• 1 x 13mm A taper drill
• 1 x Drill guide
• 1 x Drift key
• 1 x Carry case
Specifications
| Specification | Detail |
|---|---|
| Product Name | OTEC Premium 5-Piece Dry Diamond Core Drill Set (38/52/65/117/127mm) with Accessories & Case |
| Product Code | DA120002 |
| Core Sizes | 38 mm 52 mm 65 mm 117 mm 127 mm |
| Core Length | 150 mm |
| Connection Type | 1/2" BSP female |
| Segment Type | Turbo diamond segment |
| Barrel Design | Helix slotted barrel |
| Drilling Type | Dry drilling |
| Suitable Materials | Brick and blockwork |
| Extension Length | 250 mm |
| Adaptors Included | SDS Plus adaptor HEX adaptor |
| Pilot Drill | 13 mm A taper |
| Accessories Included | Guide drift key extension adaptors |
| Storage | Carry case included |
| Compliance | OSA certified |
| Standard | BS EN 13236 |
Compatibility
| Compatible With | Status |
|---|---|
| Handheld core drills | ✓ Compatible |
| SDS drills with adaptor | ✓ Compatible |
| Brick | ✓ Compatible |
| Blockwork | ✓ Compatible |
| Reinforced concrete | ✗ Not recommended |
| Wet drilling systems | ✗ Not recommended |
Who Is This For?
This core drill set is designed for professional plumbers, electricians, and construction trades working across varied installation tasks. It is suited to users who require multiple core sizes for consistent on-site drilling without switching between individual tools.
Typical Applications
• Drilling pipe penetrations in masonry walls
• Installing electrical conduit and cable routes
• Creating openings for ventilation and ducting
• Service entry drilling in brick and blockwork
• General construction and retrofit drilling tasks
• Multi-trade installation work requiring varied core sizes
How to Use
-
Select the appropriate core size for the application
-
Attach the core to the drill using the adaptor provided
-
Fit the pilot drill and guide if required
-
Mark the drilling position accurately
-
Begin drilling with steady pressure and controlled speed
-
Withdraw periodically to clear dust from the barrel
-
Continue until the required depth is achieved
Safety and Maintenance
Safety during use:
Wear PPE including dust mask eye protection and gloves
Use dust extraction where possible
Avoid excessive force during drilling
Ensure all components are securely fitted before use
After use and maintenance:
Clean all cores and accessories after use
Remove debris from barrel slots and segments
Inspect diamond segments regularly for wear
Store all components in the case to prevent damage
Frequently Asked Questions
Q: What materials is this core drill set suitable for?
A: It is designed for dry drilling in brick and blockwork, providing clean and efficient cutting without water.
Q: What sizes are included in this set?
A: The set includes 38mm, 52mm, 65mm, 117mm, and 127mm core drills for a wide range of applications.
Q: Is this suitable for reinforced concrete?
A: No, this set is optimised for masonry and is not recommended for reinforced concrete.
Q: What is the advantage of having five core sizes?
A: It allows you to handle multiple applications without purchasing additional cores, improving efficiency on site.
Q: What do turbo segments improve?
A: Turbo segments increase cutting speed and help maintain a clean and consistent drilling performance.
Q: Why is the helix barrel important?
A: It improves dust clearance, reducing clogging and helping maintain cutting efficiency during drilling.
Q: Does this set include everything needed to start drilling?
A: Yes, it includes core drills, adaptors, pilot drill, extension, and accessories for immediate use.
Q: What does 1/2" BSP compatibility mean?
A: It ensures the cores fit standard dry drilling equipment commonly used across UK sites.
Q: What standard does this comply with?
A: It complies with BS EN 13236 and is OSA certified for safety and performance.
Q: Why buy core drill sets from CMT Group?
A: CMT Group supplies trade-grade tools with consistent stock availability, expert support, and fast UK delivery including same and next working day options.
